Improvement in cylinders for machine-cards



UNITED STATES PATENT OEEICE.

C. E. BRO'WNELL, OF EAST HADDAM, CONNECTICUT.

IMPROVEMENT IN 'CYLINDERS FOR MACHINE-CARDS.

Specification forming part of Letters Patent No. 34,734, dated March 25,186,2.

inders; and I do hereby declare that the fol-` lowing is a full, clear,and exact description of the same, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure l is a longitudinal outside view of a card-cylinder with myimprovement. Fig. 2 is an end View of the same. Fig. 3 isacentralsectional view of a port-ion of the same.

Similar letters of reference indicate corresponding parts in the severaliigures.

It is well known by all who have had eX- perience in carding cotton andother fibrous materials that there is some difficulty in keeping thefillet on the doffer and other cylinders of the carding-machines tight.In grinding the card the slack is all driven to one end, when it'becomes necessary to un- Wind a portion of the lillet and rewind it.This requires the aid of at least three men, and has to be repeatedseveral times a year.

The object f my invention is to obviate this necessity for unwinding andrewinding the fillet; and to this end it consists in making the cylinderwith a movable head or ring at one end, or otherwise making a portion ofthe same movable on its axis, that it may beA turned relatively to theother portion for the purpose of tightening up the iillet.

To enable those skilled in the'art to make and use my invention, I willproceed to describe its construction and opera-tion.

A is the cylinder, and B a movable head `which is secured by a screw dor similar device to the cylinder near the end which is farthest fromthe head B, and the other end by a similar screw e, or its equivalent,to the head B. Several screw-holes c c are provided in the cylinder toenable the position of the screws b b to be changed, and thus permit thehead B to be turned without removing the screws. To tighten up thefillet,it is only necessary to unscrew the screws b b and turn the headB, or, if the screws do not permit it to turn sufficiently withoutremoval, they should be removed and inserted in the next holes c c, andwhen the fillet is drawn quite tight the screws are screwed up tightlyto s ecure it.

Vhat I claim as my invention, and desire to secure by Letters Patent,is-

Iroviding 'the cylinder with a movable head B, or otherwise making aportion of the same, to which one end of the card-fillet is attached,movable about its axis relatively to the other portion thereof, to whichthe other end of the fillet is attached, substantially as and for thepurpose herein specified.

. C. E. BROWNELL.

Vitnesses:

ISAAC ACKLEY, Trios. C. BORDMAN.

